AI in Brief — Monday, 06 July 2026

Amazon will stop accepting new customers for Mechanical Turk, its crowdsourced labour platform that has long served as a testing ground for artificial intelligence training data. The company has not announced a shutdown date or disclosed what will happen to existing workers on the platform, which has enabled researchers and companies to hire people to complete small tasks at scale. Source

Meta's Threads has reached 500 million monthly users, matching the scale of Elon Musk's X platform. The social network, which Meta launched in 2023 as a direct rival to X, has increasingly shifted its character to resemble Reddit, the link-sharing and discussion site, as it competes for users in the fragmented social-media landscape. Source

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